Designation:D344−11StandardTestMethodforRelativeHidingPowerofPaintsbytheVisualEvaluationofBrushouts1ThisstandardisissuedunderthefixeddesignationD344;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodprovidesforthequalitativeandquan-titativevisualdeterminationofthehidingpowerofatestpaintrelativetothatofacomparisonpaint.1.2Thistestmethoddescribesonlyabrushoutapplicationprocedureinspecificdetail,butitsconceptsarevalidforothermethodsofapplicationaswell.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D16TerminologyforPaint,RelatedCoatings,Materials,andApplicationsD1475TestMethodForDensityofLiquidCoatings,Inks,andRelatedProductsD1729PracticeforVisualAppraisalofColorsandColorDifferencesofDiffusely-IlluminatedOpaqueMaterialsD2805TestMethodforHidingPowerofPaintsbyReflec-tometryD5068PracticeforPreparationofPaintBrushesforEvalu-ationE1247PracticeforDetectingFluorescenceinObject-ColorSpecimensbySpectrophotometryE1347TestMethodforColorandColor-DifferenceMea-surementbyTristimulusColorimetryE1349TestMethodforReflectanceFactorandColorbySpectrophotometryUsingBidirectional(45°:0°or0°:45°)Geometry3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthistestmethod,refertoTerminologyD16andthePaint/CoatingsDictionary.33.2DefinitionsofTermsSpecifictoThisStandard:3.2.1relativehidingpower,qualitative,n—thecharacteriza-tionofatestpaintasbeingbetter,equal,orpoorerinhidingpowerthanacomparisonpaint.3.2.2relativehidingpower,qu...
